Eduardo Cassiraga

Universitat Politècnica de València

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J. Jaime Gómez‐Hernández

Universitat Politècnica de València

Javier Rodrigo-Ilarri

Universitat Politècnica de València

Andrés Sahuquillo

Universitat Politècnica de València

María-Elena Rodrigo-Clavero

Universitat Politècnica de València

David Sanz

Hospital General Universitario Gregorio Marañón

Juan José Gómez Alday

University of Castilla-La Mancha

Oscar David Álvarez‐Villa

Vanderbilt University

Daniel Sempere‐Torres

Universitat Politècnica de Catalunya

Pablo Gustavo Romanazzi

Universidad Nacional de La Plata

Iordanka Dountcheva

University of Castilla-La Mancha

Cooperative Institutions

Universitat Politècnica de València

Universitat de València

University of Castilla-La Mancha

Universitat Politècnica de Catalunya

Universidad Nacional de Colombia

Centro de Estudios y Experimentación de Obras Públicas

Hospital General Universitario de Albacete

Universidad Politécnica de Madrid

Centre National de la Recherche Scientifique

John Wiley & Sons (United States)

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Regionalización de los parámetros hidrogeológicos en un acuífero con doble porosidad

Pablo Gustavo Romanazzi Eduardo Cassiraga

Resumen En el distrito uranifero Cerro Solo del Departamento Pasos de Indios en la provincia del Chubut, Republica Argentina, se desarrolla una unidad cretacica acuifera confinada cuyo medio poroso se presenta anisotropo y muy heterogeneo, lo cual hace muy dificil la regionalizacion de sus parametros hidrogeologicos. Ademas de estas caracteristicas, existe tambien un comportamiento como acuifero naturalmente fracturado lo cual le confieren una porosidad secundaria importante. Luego de la exploracion mediante ensayos de bombeo y en la posterior modelizacion matematica del acuifero a escala regional, se realizo una estimacion de la conductividad global en areas activas del flujo y se adopto un orden de magnitud menor para el coeficiente de almacenamiento con el fin de obtener asi una estimacion conservadora de los terminos del balance hidrico y a su vez resulte confiable para la determinacion del regimen de extraccion sustentable que sustentara la actividad minera que se desarrollara en la zona. En este trabajo, los ensayos de bombeo disponibles fueron reinterpretados mediante el agregado de los parametros propios de la funcion de transferencia matriz/fisura (caracteristica esencial de los acuiferos con doble porosidad, Barenblatt et al, 1960) contribuyendo asi a una representacion mas aproximada de la dinamica hidrica regional.

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Cartografía de Metales Pesados mediante Técnicas Geoestadísticas

Juan Carlos García Díaz Juan Manuel Gisbert Blanquer Franky Méndez Romero Ángel Marqués Mateu Eduardo Cassiraga

RESUMEN En el presente articulo se presentan los mapas de concentracion de metales pesados de una zona agricola situada junto a la Albufera de Valencia (Espana). La gestion integral de recursos hidricos sugiere el uso de aguas residuales urbanas como fuente adicional de agua de riego. Esto puede resultar interesante en zonas de clima mediterraneo donde suele haber escasez de tales recursos. Sin embargo el uso de aguas residuales origina situaciones que potencialmente pueden ser peligrosas para la salud humana o para el ecosistema. La zona de estudio tiene gran tradicion agricola y en ella se cultivan citricos y arroz. El seguimiento de las areas agricolas donde se da este tipo de gestion no resulta facil y en este contexto presentamos los resultados en forma de cartografia tematica. La cartografia se ha obtenido mediante el uso de Sistemas de Informacion Geografica y tecnicas geoestadisticas, resultando una combinacion muy adecuada en terminos de gestion global de la informacion y rapidez en la obtencion de resultados.

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Incorporating Information from a Digital Elevation Model for Improving the Areal Estimation of Rainfall

Quantitative geology and geostatistics (2001)

J. Jaime Gómez‐Hernández Eduardo Cassiraga Carolina Guardiola-Albert J. Álvarez Rodríguez

Elevation (ballistics)

Inverse distance weighting

Variogram

10.1007/978-94-010-0810-5_6

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Citations (18)

Influence of Hydraulic Conductivity and Wellbore Design in the Fate and Transport of Nitrate in Multi-aquifer Systems

Mathematical Geosciences (2012)

Amanda Mejía Eduardo Cassiraga Andrés Sahuquillo

Aquifer test

10.1007/s11004-012-9388-3

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A non-parametric methodology to merge raingauges and radar by kriging:

Carlos Velasco‐Forero Daniel Sempere‐Torres Rafael Sánchez‐Diezma Eduardo Cassiraga J. Jaime Gómez‐Hernández

Merge (version control)

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Métodos geoestadísticos y estocásticos aplicados a la modelización de flujo de agua subterránea y transporte de solutos

José Jaime Gómez Hernández Eduardo Cassiraga J. Capilla Andrés Sahuquillo Herráiz

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Pwc-Based Evaluation of Groundwater Pesticide Pollution in the Júcar River Basin

SSRN Electronic Journal (2022)

Ricardo Perez-Indoval Javier Rodrigo-Ilarri Eduardo Cassiraga María-Elena Rodrigo-Clavero

Predicting pesticides’ behavior in the environment is necessary to anticipate and minimize their adverse effects. Despite the use of pesticides in Spain is increasing, the implementation and use of predictive mathematical models is seldomly done in practice due to the lack of available data. In this original work, the Pesticide Water Calculator (PWC) model has been applied to model pesticide behavior in nine groundwater bodies located inside the Júcar River Basin (JRB) in Spain. It has been verified that pesticide concentration values in these areas are higher than the Maximum Concentration Levels (MCL) established by Spanish legislation. Bromacil, terbuthylazine, atrazine, desethyl-terbuthylazine and terbumeton concentrations in groundwater were simulated between 2006 and 2019. Mathematical modelling allowed calculating the maximum concentration of the pollutants after completing the calibration and validation processes. Results show the applicability of the PWC model to estimate daily and annual pesticide concentrations in groundwater. This study contributes to the assessment of environmental risks caused by the use of pesticides inside the JRB and can potentially be applied in other areas of interest.

Groundwater Pollution

10.2139/ssrn.4051273

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Assessment of Groundwater Contamination by Terbuthylazine Using Vadose Zone Numerical Models. Case Study of Valencia Province (Spain)

International Journal of Environmental Research and Public Health (2020)

Javier Rodrigo-Ilarri María-Elena Rodrigo-Clavero Eduardo Cassiraga Leticia Ballesteros-Almonacid

Terbuthylazine is commonly used as an herbicide to control weeds and prevent non-desirable grow of algae, fungi and bacteria in many agricultural applications. Despite its highly negative effects on human health, environmental modeling of this kind of pesticide in the vadose zone till reaching groundwater is still not being done on a regular basis. This work shows results obtained by two mathematical models (PESTAN and PRZM-GW) to explain terbuthylazine behavior in the non-saturated zone of a vertical soil column. One of the models use a one-dimensional analytical formulation to simulate the movement of terbuthylazine through the non-saturated soil to the phreatic surface. The second and more complex model uses a whole set of parameters to solve a modified version of the mass transport equation considering the combined effect of advection, dispersion and reactive transport processes. Both models have been applied as a case-study on a particular location in South Valencia Aquifer (Spain). A whole set of simulation scenarios have been designed to perform a parameter sensitivity analysis. Despite both models leading to terbuthylazine's concentration values, numerical simulations show that PRZM-GW is able to reproduce concentration observations leading to much more accurately results than those obtained using PESTAN.

Terbuthylazine

10.3390/ijerph17093280

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Citations (13)

On The Propagation of Uncertainty in Upscaling Solute Transport Models

AGU Fall Meeting Abstracts (2005)

J. Jaime Gómez‐Hernández Daniel Fernàndez‐Garcia Eduardo Cassiraga

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The social construction and consequences of groundwater modelling: insight from the Mancha Oriental aquifer, Spain

International Journal of Water Resources Development (2018)

David Sanz Jeroen Vos Femke Rambags Jaime Hoogesteger Eduardo Cassiraga

Groundwater flow models have been increasingly used to support policy making. A substantial amount of research has been dedicated to improving, validating and calibrating models and including stakeholders in the modelling process. However, little research has been done to analyze how the choices of model makers and steering by policy makers result in models with specific characteristics, which only allow specific modelling outcomes, and how the use of these modelling outcomes leads to specific social, economic and environmental consequences. In this study, we use the social construction of technology framework to explore the development, characteristics and uses of the groundwater model of the Mancha Oriental aquifer in Spain. The specific characteristics and functioning of this model influenced the policy implementation, implying that involving stakeholders in the development and use of models is crucial for improved democratic policy making.

10.1080/07900627.2018.1495619

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Citations (24)